Asacha is a composite stratovolcano that is made up of several extinct cones. Its best preserved crater is located on the south-eastern most cone. Asacha is located north of Khodutka and over time has been eroded into four summits, which have inner slopes that are steep and rocky. Pyroclastic flows from Asacha form a large pumice plain around it. Asacha has never erupted in historical times.
Some other volcanoes that are located in this general area include: Opala, Gorely and Mutnovsky.
Sources of Information:
Kozhemyaka, N.N., "Quaternary Pumice Tuff-Ignimbrite Fields and Centers of Eruption in Southern Kamchatka," Akad Nauk USSR, Bulletin of Volcanology, Station No. 57, 1979.
Krijanovsky, N., "Volcanoes of Kamchatka," GSAB, v. 45, pp. 529-550, June 30, 1934.
Sviatolovsky, A. E. 1959 Atlas of Volcanoes of the Soviet Union, USSR Academy of Sciences, Moscow USSR. pp. 74 & 167.